Type-writing machine.



V W. P. HELMUND.

TYPE WRITING MAGHINE. APPLICATION FILED 11.24, 1908* 928,972. Patented July 27, 1909.

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WILLIAM F. HELMOND, OI" HARTFORD, CONNECTICUT, ASSIGNOR TU UNDERWOOD TYPE- WRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

TYPE-WRITING MACHINE.

To all whom it mar concern:

Be it known tint I, W'ILLIAM F. Elr MOND, a citizen of the United St ates, residing in I'Iartford, in the county of l lartford and 5 State of (onnecticnt, have invented certain new and useful Improvements in 'lype \Vritin g Machines, of which the following is a specification.

This invention relates to ribbons for typewriting machines, and the object of the invention is to provide an improved, simple and inex cnsive means for attaching the ribbons to t ie ribbon spool, especially in a manner to cooperate with a ribhon-rever ing mechani m; so as to overcome thedifliculty of attaching the ribbon to the spool due to the narrow space between the. spool flanges.

In carrying out the invention, I roviile a hook having an eye through which too end of a ribbon is threaded, then fold such-end back and secure it to the body of the ribbon to form a very long loop to support the hook. 'lhe latter catches over a pin fixed between the. flanges of the spool; the means for securing the end to the body of the ribbon forming also an obstruction for o ierating a ribbonreversing mechanism, suc for instance, as shown in United States Patent No. 828,548, dated August 14, 1906.

In the accompanying drawings, Figure 1 is a view illustrating the manner of attaching the improved ribbon to the ribbon spool. Fig. 2 is a sectional plan elevation of a. ribbon spool, showing themeans for securing the end to the body of the ribbon in engagement with the forked end of a lever forming part of a ribbon-reversin mechanism. Fig. 3 is a perspective view oi the ribbon-attaching hook.

lhe ribbon spool comprises a pair of flanges 1, connected by a core 2, flattened or cut away, as at 3. A ribbon-attaching pin 4 is secured between the flanges adjacent to the flattened portion 3.

The ribbon 5 is threaded through an eye 6 in a hook 7, then folded back and secured to the body of the ribbon by a rivet or eyelet 8, forming a loop ot great length for support Specification of Letters Yatent.

Application filed January 24, 1908.

Patented July 27, 1909.

Serial No. 412,433.

ing the hook 7, the latter preferably hanging loosely in the. loop.

'lo attach a ribbon, a spool is taken in either band, Fig. 1, allowing the looped end and the hook T to fall between the flanges of the lower spool, and by a slight upward pull the hook is caught upon the pin 4. The attachment of the ribbon is accomplished without liability of soiling the hands.

At Fig. 2 the eyelet 8 is shown as engagin with the forked end 11 of a lever 12, pivotev at 13, the ribbon being threaded between the prongs of fork 1], and unwinding as indicated by the arrow. When the eyelet 8 reaches the fork 11, the continued unwinding of the ribbon will throw the lever 12' outwardly, and thereby operate mechanism to reverse the winding of the ribbon as set forth in the patent hereinbelore referred to. The loop of the ribbon is of extraordinary length, to enable the obstruction at one end thereof to engage the ribbon-reversing lever, which is mounted exterior-1y of the spool, While the hook at theother end thereof is caught on the spool pin, and the body of the loop is wrapped around the core, so that the spool may continue to unwind freely while the ribbon-reversing lever is being operated.

Having thus described my inventlon, I

claim:

1. In a typewriting machine, the combination with a ribbon spool having a ribbon-attaching pin, of a ribbon, the end of which is threaded through an eye in a hook, then folded back and secured to the body of the ribbon, to form a loop, said hook catching over the pin in the spool when attaching the ribbon, and the means for securing the end of the ribbon forming an obstruction to abut a-gaii'ist a lever disposed exterior-1y of the spool to operate a ribbon-reversmg mechanism; said hook of su'llieient length to permit said obstruction to operate said lever while a substantial portion of the length of the loop remains wrapped around the core.

. 2. In a typewritjng machine, the combination with a detachable ribbon-spool having a core and flanges and a ribbon-at taching in, of a ribbon, the end of which is folded 1 snfiicient length to permit said obstruction eek and seoured-to the hotly-0f the ribbon to Q perete said lever While a, substantial 10 te-rform aloo by meane'which forms anfob- "P01131011 offthe length of the loop remains struetien to -a ut against the forked arm of a wrapped around the core. 5 lever disposed-exteriorlyof'the epool to op- WILLIAM F. HELMOND.

erate aribbon-reversing mechanism, and a Witnesses: hook caughtupon the "free end cvfthe loop to W. M. BYORKMAN, catch over the 15in in the-spool, said loop of MORTON C. TALGOTT. 

